1. Appetizers are small portions of food served before a meal to stimulate appetite and can include items like canapés, cocktails, relishes, fruit, and grilled foods. 2. Sandwiches consist of a filling between two slices of bread and can be hot, cold, open-faced, grilled, or deep-fried. Common fillings include meats, cheeses, fish, salads, fruits, and nuts. 3. Salads can be served as appetizers, alongside a main dish, or as a main dish themselves and are classified by ingredients - such as fruit salads, vegetable salads, and high-protein salads containing meat or seafood.